<template>
  <div>
    <!-- 面包屑 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>活动管理</el-breadcrumb-item>
      <el-breadcrumb-item>活动列表</el-breadcrumb-item>
      <el-breadcrumb-item>活动详情</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="9">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList()"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList()"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表区域 -->
      <el-table :data="userList" :stripe="true" :border="true">
        <el-table-column label="@" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template v-slot="{ row }">
            <el-switch v-model="row.mg_state" @change="userStateChanged(row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template v-slot="{ row }">
            <!-- 编辑按钮 -->
            <el-tooltip
              effect="dark"
              content="编辑"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(row.id)"
              ></el-button>
            </el-tooltip>
            <!-- 删除按钮 -->
            <el-tooltip
              effect="dark"
              content="删除"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeUserById(row.id)"
              ></el-button>
            </el-tooltip>
            <!-- 设置按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 3, 4]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户的对话框  -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>

        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>

        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>

        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        :model="editForm"
        :rules="addFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>

        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>

        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>

      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前用户：{{ userInfo.username }}</p>
        <p>当前角色：{{ userInfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleId"
          >确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  name: "User",
  data() {
    //验证邮箱的规则(自定义规则)
    let checkEmail = (rule, value, callback) => {
      //验证邮箱的正则表达式
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/;
      if (regEmail.test(value)) {
        //合法的邮箱
        return callback();
      }
      callback(new Error("请输入合法的邮箱"));
    };

    //验证手机号的规则(自定义规则)
    let checkMobile = (rule, value, callback) => {
      //验证手机号的正则表达式
      const regMobile =
        /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/;
      if (regMobile.test(value)) {
        //合法的手机号
        return callback();
      }
      callback(new Error("请输入合法的手机号"));
    };
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: "",
        //当前页数
        pagenum: 1,
        //每页展示多少条数据
        pagesize: 2,
      },
      userList: [],
      total: 0,
      //控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      //查询到的用户信息对象
      editForm: {},
      //添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      //添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名的长度在 3 到 10 个字符",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 11,
            max: 20,
            message: "密码的长度在 11 到 20 个字符",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入电子邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
          {
            min: 11,
            max: 20,
            message: "电子邮箱的长度在 11 到 20 个字符",
            trigger: "blur",
          },
        ],
        mobile: [
          { required: true, message: "请输入电话", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
          {
            min: 11,
            max: 13,
            message: "电话的长度在 11 到 13 个字符",
            trigger: "blur",
          },
        ],
      },
      //控制分配角色对话框的显示与隐藏
      setRoleDialogVisible: false,
      //需要被分配的角色用户信息
      userInfo: {},
      //获取所有角色的数据列表
      rolesList: [],
      //已选中的角色ID值
      selectedRoleId:'',
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取用户列表失败");
      } else {
        this.userList = res.data.users;
        this.total = res.data.total;
      }
    },
    //监听pagesize 改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    //监听页码值改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    //监听 switch 开关的状态
    async userStateChanged(userinfo) {
      console.log(userinfo);
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state;
        return this.$message.error("更新用户状态失败");
      } else {
        this.$message.success("更新用户状态成功");
      }
    },
    //监听添加对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    //点击按钮，添加用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) {
          return this.message.error("更新用户失败");
        } else {
          //可以发起添加用户的网络请求
          const { data: res } = await this.$http.post("users", this.addForm);
          if (res.meta.status !== 201) {
            return this.$message.error("添加用户失败");
          } else {
            this.$message.success("添加用户成功");
            //隐藏添加用户的对话框
            this.addDialogVisible = false;
            //重新获取用户列表数据
            this.getUserList();
          }
        }
      });
    },
    //展示编辑用户的对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("查询用户信息失败");
      } else {
        this.editForm = res.data;
      }
      this.editDialogVisible = true;
    },
    //监听修改用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    //修改用户信息并提交
    editUserInfo() {
      this.$refs.editFormRef.validate(async (vaild) => {
        if (!vaild) {
          return this.$message.error("验证失败");
        } else {
          //发起修改用户信息的数据
          const { data: res } = await this.$http.put(
            "users/" + this.editForm.id,
            { email: this.editForm.email, mobile: this.editForm.mobile }
          );
          if (res.meta.status !== 200) {
            return this.$message.error("修改用户数据失败");
          } else {
            //关闭对话框
            this.editDialogVisible = false;
            //刷新列表
            this.getUserList();
            //提示修改成功
            this.$message.success("修改用户数据成功");
          }
        }
      });
    },
    //根据id删除对应的用户信息
    async removeUserById(id) {
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((error) => error);
      //如果用户确认删除，则返回值为字符串 confirm
      //如果用户取消删除，则返回值为字符串 cancle
      if (confirmResult !== "confirm") {
        return this.$message.info("已取消删除");
      }
      const { data: res } = await this.$http.delete("users/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("删除用户失败");
      } else {
        this.$message.success("删除用户成功");
        this.getUserList();
      }
    },
    //展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo;

      //在展示对话框之前，获取所有角色数据
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status !== 200) {
        return this.$message.error("获取角色数据失败");
      } else {
        this.rolesList = res.data;
      }

      this.setRoleDialogVisible = true;
    },
    //点击按钮，分配角色
    async saveRoleId() {
      if(!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色');
      };

      const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid: this.selectedRoleId});
      
      if(res.meta.status !== 200) {
        return this.$message.error('更新角色失败');
      }else{
        this.$message.success('更新角色成功');
        this.getUserList();
        this.setRoleDialogVisible = false;
      }
    },
    //监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = '',
      this.userInfo = {}
    }
  },
};
</script>

<style scoped>
</style>